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CAT4237 - High Voltage CMOS Boost White LED Driver

Description

The CAT4237 is a DC/DC step-up converter that delivers an accurate constant current ideal for driving LEDs.

Operation at a constant switching frequency of 1MHz allows the device to be used with small value external ceramic capacitors and inductor.

Features

  • Drives 6 to 8 White LEDs in series from 3V Up to 87% Efficiency Low Quiescent Ground Current 0.6mA Adjustable Output Current (up to 40mA) High Frequency 1MHz Operation High Voltage Power Switch Shutdown current less than 1µA Open LED low power mode Automatic Shutdown at 1.9V (UVLO) Thermal shutdown protection Thin SOT23 5-Lead (1mm max height) Product.

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Datasheet preview – CAT4237

Datasheet Details

Part number CAT4237
Manufacturer Catalyst Semiconductor
File Size 412.12 KB
Description High Voltage CMOS Boost White LED Driver
Datasheet download datasheet CAT4237 Datasheet
Additional preview pages of the CAT4237 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com CAT4237 High Voltage CMOS Boost White LED Driver Features • • • • • • • • • • • Drives 6 to 8 White LEDs in series from 3V Up to 87% Efficiency Low Quiescent Ground Current 0.6mA Adjustable Output Current (up to 40mA) High Frequency 1MHz Operation High Voltage Power Switch Shutdown current less than 1µA Open LED low power mode Automatic Shutdown at 1.9V (UVLO) Thermal shutdown protection Thin SOT23 5-Lead (1mm max height) Product Description The CAT4237 is a DC/DC step-up converter that delivers an accurate constant current ideal for driving LEDs. Operation at a constant switching frequency of 1MHz allows the device to be used with small value external ceramic capacitors and inductor.
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